poor man's programmable order looper

[daytripper]

I made a topic with the same title in the "switching" category, but i think it belongs here, so moderators feel free to delete the other topic.
after reading GEOFEX and countless threads, I haven't found anyone saying that he has built a looper with the rotary switches, making possible the any-order-of-X loops. It has a great advantage for an amateur like myself: easy to troubleshoot and it is hardwired (analogue). So I prefer this to complicated switching that will, at some point, go wrong and I will forfeit what I am doing because I am not an electronic engineer. I drawed this, and I don't know if it will work properly with high gain pedals in some loops. the DPDT of each loop connects with a rotary (i wrote an R in it), that connects the send and return to the desired loop. will the rotary (2P6T here) add some noise, or leakage ? I belive that I have to ground all the unused inputs - will it also apply to the unused loops ?

[Mark Hammer]

I can't see your drawing (links to image archives blocked at work), but the concept is sound.

I would draw your attention to the following:

1) All those wires will be carrying audio signal, over greater distances than usual, and within close proximity to other signals.  So you will want to use shielded cable for them, even if the whole thing is situated in a metal box that shields it from the outside world.  This is to avoid oscillations occurring from teeny signal bleed from the last effect in line being right near the cables for the first thing in line.

2)  Leave one of the switch positions at each station for an external loop.  That loop can be a send and receive jack, "normalized", so that if nothing is plugged into it, the one automatically connects to the other to form a straight wire bypass.   With a 6PDT rotary switch, that only leaves 5 options, but when you consider what effects you likely want in a given station/order, that may be enough.  Just work out in advance what 5 you would likely want HERE and which 5 you would likely want THERE.

[Fender3D]

Maybe you would use the Rotarys 
to drive relays.
This may give you several collateral "effects":
Relays can be placed near pedals/jacks, signals are effectively separated, you may use up to 1P12T otherwise you may use the second "P" of your 2P6T to detect when you accidentally set more than 1 effect in the same position